9999477 has 16 divisors (see below), whose sum is σ = 14904000. Its totient is φ = 6625872.

The previous prime is 9999469. The next prime is 9999481. The reversal of 9999477 is 7749999.

It is not a de Polignac number, because 9999477 - 2³ = 9999469 is a prime.

9999477 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9999277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3799 + ... + 5867.

It is an arithmetic number, because the mean of its divisors is an integer number (931500).

Almost surely, 2^9999477 is an apocalyptic number.

It is an amenable number.

9999477 is a deficient number, since it is larger than the sum of its proper divisors (4904523).

9999477 is a wasteful number, since it uses less digits than its factorization.

9999477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2257 (or 2251 counting only the distinct ones).

The product of its digits is 1285956, while the sum is 54.

The square root of 9999477 is about 3162.1949655263. The cubic root of 9999477 is about 215.4397130399.

The spelling of 9999477 in words is "nine million, nine hundred ninety-nine thousand, four hundred seventy-seven".